Geography- The Northern Colonies were mostly mountains with colder climate and a thin layer of soil only for subsistence farming.
Geography- The Southern Colonies were mostly plains with warmer climate and rich fertile soil suitable for cash crop farming.
Settlement- The Northern Colonies were settled mainly for reasons of religious and political freedom.
Settlement- The Southern Colonies were settled mainly for economic gain (commercial gain).
Economic- The Northern Colonies economic activity was based on manufacturing and trade
Economic- The Southern Colonies economic activity was based on agriculture.
Regional Charactetistics- The Northern Colonies regional charactetistics include: common heritage, small villages, shared land, substinence farmers, busy seaports, difficult and primitive, entertainment involved work.
Regional Colonies- The Southern Colonies regional charactetistics include: contrast between plantations and backcountry, self-sufficient community, slavery, backcountry constant struggle and little money and kealous, coast wealthy, very diverse.
I think the answer would be A. Both used irrigation.
This period of time is called the "Scramble for Africa", because the European nations were trying to get as much land as they could.
It's definitely the 15th. Google it for more details.